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9.8.4 Using the computer in practice

Back on our flight. Calculate the entire plan for the flight. Variation is set

according to the map in whole degrees 2°E. (Remember that if you are using a

newer map, it is higher).

Solve the problem by drawing triangles as shown before.

Route TT W/V Dist. WCA TH MH GS Flight time

EKHG → EKSD 254 190/20 18 ÷ 10 244 242 89

EKSD → EKLV 344 190/20 25

EKLV → EKHG 128 190/20 31

Start by hiding the answer list below.

Answer list – which you must check with when you have calculated all the empty

fields:

Route TT W/V Dist. WCA TH MH GS Flight time

EKHG → EKSD 254 190/20 18 ÷ 10 244 242 89 12 min 10 sec

EKSD → EKLV 344 190/20 25 ÷ 5 339 337 118 12 min 45 sec

EKLV → EKHG 128 190/20 31 + 10 138 136 88 21 min 10 sec

Don't worry if you have up to 10 seconds of error in the time calculation, because

in practice we always round up to the nearest whole minute.

If you also think it's a hassle to draw triangles and measure, help is on the way.

If you turn the computer (Pooley's CRPW 1) you can see the "wind calculation

page".

Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 866